Platen-press.



UNITED STATES PATENT OFFICE.

ATI-IERTON EBERLE AND CHARLES II. EBERLE, OB DOVVNEY, CALIFORNIA.

PLATEN-PRESS.

SPECIFIGATION forming art of Letters Patent No. 676,224, dated June' 11 1901.

Application filed Merck 5, 190Q. Serlal ITol 7,438. (N0 model) T0 all w7wm it may aoncern:

Be it known that we, ATHERTON EBERLE and CHARLES H. EBERLE, residing als Downey,in the county of Los Angeles and Stace of California, have invented a new and nseful Improve'ment in Platen-Presses, 0f whieh the following is a specifieation.

Our invention relates so means for operating platen-presses by foot-power.

An objeet; 0f 0111 invention is to provide a light and simply-construeted foot appliance f0r operating platen-presses.

A furher objeeb is t0 provide an attackment for aplaten-press whieh can be attached 120 any of the hand-presses now in use, and thereby transform the same into a foot-power press.

The accompanying drawings illustrate eur invention.

Figure 1 is a perspective view ef a platenpress embodying our invention. This view is taken frorn the side on whiel1 the pressrnan stands. Fig. 2 is a perspeetive view of the attachmenb by Which we transfonn a handpress into a foot-power press. A portion 0f the handle of the press is shown and the lever is in the position whieh i t oceupies when the press is ab rest. Fig. 3 is a fragmental seebional detail of the push-arm and the clamp for pivotally attaching'the Same t0 the handle of the press.

A indieates the frame 0f the press, B the platen, and O the handle 01 lever by whieh the press hasheretofore been operated by band. All these are the Same as ordinarily in use 011 platen-presses and are nob claimed as new.

D indieates in a general way our newly-invented foot attaehmentwhitah comprises a foot-lever 1 with upright arm l and a Connecting-rod er push-artn 2, whieh is pivot1- ally eonneeted at one end witl1 the upright arm of the lever and is pivotally connected ab the other end with the handle of the press.

Preferabl y the rod is conneeted with the upright arm of the lever by means 0f a 001- lar 3, swiveled on the uprighb arm toturn in pivot 5 whieh is ab right angles t0 the eollarplvol: 4.

The clamp E eomprises two nxembers e e, having st'raightportions e" a1; their rearends, respeetively, and benl: in fronb thereof to fit; the handle of the press, and both are pivoted t0 the free end of the connecting-rod by a comm0n pivot 5, Whicl1 asses through the straight; members e G indicates a screw f01 drawing the free ends 0f the cla1np me1n bers toward each othe1.

The lever i's mounted 011 a base 7. The nprights 8 8 are fastened to the base and two slanting guide-rails 9 9 are fastened one t0 each of the uprights a1ld pivoted at their lower ends 130 the base.

10 indicates the fuleruxn-pivot f01 the le-' ver, whieh extends aeross between the uprights to pivot the lever. The bent foot-lever 1 l is arranged between the guide-rails and is pivoted at its bend by the pivot 10, which isparallel with pivot 4.

lindieates the foot-plate, which is fastened to the horizontal member l of the footlever and lies ab a slight angle to the main body of the foot-lever, so that when the counectaing-rod is attaehed to the handle 0f the press and Lhe press is ab rest With the foot1- plate raised the foot1-plate Will be horizontal, the object; of this being t0 allow the greatest coxnfort 130 the operator,it being preferable Chat; the S018 of the foot; be horizontal when the press is ab rest because the greatest eifort must; be put forth when the foot is in this position,

12 indieates a strengthenlng-standard f0r thelower ends of the slantaing guide-rails.

13 indicates a Washer fastened to the upright ar'm l f01 the collar 3 to rest upon.

-14 indicates a brace extending fr01n near the foot-plate to the upper end 0f the upright arm l. The eollar 13 rests upo1i this bxace.

In praetiez'zl construction the base 7 is a flat board reinforeed by a pieee 7 uponwhich the uprights 8 8 are mounted, thus bringing the base of the uprights fartherabove the fi0or F than would otherwise be the ease, and thereby allowing the fulcrum 10 of the lever to be brought close to the bases of the uprights 8 8.

By preference 0111 ataehment is construeted largely of ordinary gas-pipe and fittings.

The uprights 8 8 and 12 and11he ar xns 1 and 1 of.the lever are preferaloly formed of gaspipe, the lever-arms 1 1 being united by an e'lbow 1', thmugh which the fulerurn-pivot 10 passes. The uprights 8 S arefast1ened 110 the base-block 7' by floor-flanges 15, in110 which the uprights are s0rewed. The guiderails 9 9' are held toge11her loy braces 9", and 11hey give greater strength and stability to the uprights 8 S. The npper end of the brace-rod 14 of the lever extends 11hrough the upright arm of 11helever and is fastened wi11h a nu11 16.

17 indicates a nu11 screwed onto the 110p of the uprigh11 arm 10 prevent the collar from being acoidentally displaced.

In praetioe the lever, push-arm, and base form a detachalole at11aohment which can be made and sold separate from the press, so as 10 be applied 150 presses 110W in use.

T0 apply the attaehrnent 110 a press whioh is se11 up, the attachrnen11 will be plaeed with its base 7 n the fioor diagonally aoross beneath the frame of the press and. will be brongh11 in110 position 10 allow the clamp E t0 be clamped 10 the handle C of the press. The attachmen11 is adjustecl 110 bringthe push-rod 2 praetically ab righ11 angles 10 the handle. 'Then the base is fastened t0 the floor and the apparatus is ready for nse.

T0 operate the press, the printer will operate the foot1-lever in the ordinary way o1": operating foo11-levers. pressed down, the push-rod pnshes forward 0n 11l1e handle and throws the platen down t0 make the impression. When the pressnre npon the foot-plate is removed, the springs G return the pla11en 110 i11s p.osition 'of res11, and thereby carry the lever back 110 its initial staroing-point ready to be operated 110 n1ake ano11her impression.

By preference11h0 f0011 pla11e and lever are weighted snffieiently 10 praet1ically balance the reeoil 0f the springs, so tha11 the labor of working the press is reduced so a minimum, the for0e required being simply 11ha11 whieh is neoessary to -disturb the balance and for0e the platen down to strlke the blow 110 1nake the impression.

In applying the attachmen11 to a press the base 7 will be se11 a11 such an angle. with the 1" rarne 0f the press as 10 0ause the pitman 110 reoiprocate longitudinally as nearly as possible in the operation 0f the press. This bringe. the footpiece 1" into a con venien11 posi11i0n for the righ11 f0011 0f the pressman while in attendance on the press, and the pressman in operating the press does n011have 110 move from bis position. When he has operat1ed the man]; 01": the press 110 run the forma under the planen, he is in exao11 position 110 opera11e the attachrnenb with his right f0ot to make When the foot-plate is the impression. When the form has been plaeed o'nthe platen, the downward movemen11 of the foot1pieee 1" and the (ionsequen11 piodnction of the impression is instantaneously made by the ac11ion of the pressmans foot1. By a litole prae11iee the movements of the pressman will become praetically automatic, so tha11 no.11ixne is lost; bu11 a11 the -momen11 the form is in posi11i0n the impression will be made and the platen raised ready for the wiohdrawal of the form.

Now, having described 0ur inven11i0n, wha11 we elain1 as new, and desire 110 seeure loy Let- 11ers Patent, lS-'- 1. The combination with the handle of a platen-press; of a foo11-lever furnished wi11h an uprigh11 arm extending into the plane of said handle; and a conneeting-rod pivo11ally eonnected ab one end with the n-pright arm to operate in a plane which is a11 righ11 angles to said arm, and provided a11 the 01?her end wi11h a pivotal ao11aehment for said handle.

2. An attaehment for a platen-press eonr prising a foot-lever with npright arm; a 001- lar swiveled on the uprigh11 arm 110 11nrn in a plane a11 righ11 angles 110 the uprigh11 arm; a clamp for the handle 01: the press; and a eonneet-ing=rod pivoted 110 the collar loy a pivo11 and 10 the elamp by a pivo11 a11 righ11 angles to the collar-pivot.

3. The comloination wlth a platempress, of a f0011-10V0r having an uprigh11 arm; a 001- lar 'sw'iveled on the upright arm 110 I'1urn in a horizontal plane; and a conneeoing-rod pivoted 110 the eollar by a horizontal pivo11 and pivotally oonneeted with the handle of the press by a vertical pivot.

4-. An attachrnent for a pla11en-press comprising a foot1-lever Wi11h upright arm; a couneoting-rod' pivoted a11 one end 110 the uprigh11arm; and'a clan1p comprising 11W0 wembers ben11 110 fit the handle 01 the press and bobh pivoted 10 the other end of the conneeting-rod and means 1:0r drawing the free ends 0f the elarnp members toward eaeh o11her.

5. In a platen-press, the oombination 0f the base; tw0 upright-s fastened 110 the base; nwo slan11ing guide-rails, onefas'oened t0 ea0h of the upright1s and b011h fastened a11 their lower ends 110 the base; a fulcrnm-pivot ex 11ending across between the uprigh11s; a ben11 foot1-lever be11ween the gnide-rails and pivoted a11its bend 110 the fulornm; and a 0011- nee ting-rod pivoted 110 the nprigh11 arm of the lever and provided wi11h xneans for piv- 011al a11taehmen1: 1:0 the handle of the press.

ATHERTON EBERLE. y CHAS. H. EBERLE.

Wimesses:

JAMES R. TOWNSEND, F. M. TOWNSEND.

IIO 

